Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
Are you battling bizarre and frustrating electrical issues in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts on its own, or even a car that refuses to start can all point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it malfunctions, it can create a cascade of confusing problems. This replacement Body Control Module, part number 15872388, is the definitive solution to restore order and reliability to your car, truck, or SUV.
From the Diagnostic Bay
We had a 2011 Chevy Impala come in that was driving the owner crazy. The dome lights would stay on, the radio would randomly shut off, and the key fob worked only intermittently. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic tool, we saw multiple communication errors all pointing back to the BCM. Instead of a costly and time-consuming repair at the dealership, we installed one of our VIN-programmed modules. The installation was straightforward, and instantly, all the strange electrical gremlins were gone. It’s a perfect example of how one component can cause so many headaches.
Is Your Vehicle Showing Signs of a Failing BCM?
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security system or anti-theft light flashing, preventing the car from starting.
- ✔ Erratic behavior from the radio, climate controls, or dashboard warning lights.
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
- ✔ Communication errors with other modules when scanned with a diagnostic tool.
Why Choose Our Programmed GM Body Control Module?
Getting your vehicle back on the road shouldn’t be complicated. Our service is designed to be the simplest, most effective solution available. We take a genuine GM Body Control Module and flash it with the latest official software updates specifically for your vehicle. All you have to do is provide us with your Vehicle Identification Number (VIN) during checkout. This means the module arrives at your door ready for installation, with no need for expensive programming at a dealership. It’s a true plug-and-play fix that saves you time and money.
Important Post-Installation Information
While this module is programmed for your vehicle, certain security and safety systems may require a ‘handshake’ procedure after installation. This is a normal part of the process.
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions. This includes power windows, door locks, interior and exterior lighting, the security system, wipers, and more.
Do I need to have this BCM programmed by a dealer?
No. We handle all the programming for you before we ship the part. Simply provide your vehicle’s VIN when you order, and the module will arrive ready to be installed.
How do I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Is this a direct replacement for my original part?
Yes, this module is a direct-fit replacement for a wide range of original GM part numbers, including 15872388, 25892622, 20815898, and many others listed in the fitment guide.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional diagnostic scan tool. Most basic code readers cannot perform these functions.